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Fuel cell co-decomposition tank system for preparing methane or hydrocarbon

A fuel cell and tank system technology, applied in electrolysis process, electrolysis components, electrolysis organic production, etc., can solve problems such as low energy utilization efficiency and lack of system optimization

Inactive Publication Date: 2021-12-21
北京思伟特新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the embodiment of the present invention aims to provide a fuel cell co-decomposition tank system for preparing methane or hydrocarbons to solve the problems of low energy utilization efficiency and lack of system optimization in the prior art

Method used

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  • Fuel cell co-decomposition tank system for preparing methane or hydrocarbon
  • Fuel cell co-decomposition tank system for preparing methane or hydrocarbon

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0057] An embodiment of the present invention discloses a fuel cell co-lysis tank system for preparing methane or hydrocarbons, such as figure 1 As shown, it includes SOEC stack 12, fan 1, electric heater 3, air-gas heat exchanger 4, steam generator 8, mixer 11, compressor 14, reformer 15, Fischer-Tropsch reactor 16, storage Gas tank 20.

[0058] Among them, the air branches of the fan 1 , the electric heater 3 , and the air-gas heat exchanger 4 are sequentially connected to obtain high-temperature air to the air inlet of the SOEC stack 12 . The water vapor obtained by the steam generator 8, CO 2 The mixed gas enters the mixer 11 through the gas branch of the air-gas heat exchanger 4, mixes with hydrogen, and is output to the fuel inlet of the SOEC stack 12. The fuel exhaust gas output by the SOEC stack 12 enters the Fischer-Tropsch reactor 16 sequentially through the compressor 14 and the reformer 15, and the methane or hydrocarbon fuel gas is obtained and transported to th...

Embodiment 2

[0071] To improve on the basis of Example 1, the fuel cell co-lysis tank system also includes an air heat exchanger 2, such as figure 2 shown. Wherein, the air heat exchanger 2 is arranged between the blower fan 1 and the electric heater 3, the first input end of the branch circuit is connected with the output end of the blower fan 1, and the second input end of the branch circuit is connected to the air exhaust port of the SOEC stack 12. Connection, branch one output end is connected with the input end of electric heater 3.

[0072] The air heat exchanger 2 is used to exchange heat between the air output by the fan 1 and the high-temperature air exhaust gas discharged from the SOEC stack 12 , so as to obtain high-temperature air and transmit it to the electric heater 3 .

[0073] Preferably, the gas output from the gas-water separator 18 further enters the reformer 15 to improve the utilization rate of the gas.

[0074] Preferably, the fuel cell co-lysis tank system furthe...

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Abstract

The invention provides a fuel cell co-decomposition tank system for preparing methane or hydrocarbon, belongs to the technical field of fuel cells, and solves the problems of low energy utilization efficiency and lack of system optimization in the prior art. The system comprises an SOEC stack, a fan, an electric heater, an air-gas heat exchanger, a steam generator, a mixer, a compressor, a reformer, a Fischer-Tropsch reactor and a gas storage tank. The fan, the electric heater and the air branch of the air-gas heat exchanger are connected in sequence to obtain high-temperature air to the air inlet of the SOEC stack; and mixed gas of water vapor and CO2 obtained by the steam generator enters the mixer through the fuel gas branch of the air-fuel gas heat exchanger, is mixed with hydrogen, and is outputted to the fuel gas inlet of the SOEC stack. Fuel electrode tail gas outputted by the SOEC stack enters the Fischer-Tropsch reactor through the compressor and the reformer in sequence, and methane or hydrocarbon fuel gas is obtained and conveyed to the gas storage tank to be stored. System optimization and full utilization of energy are realized.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell co-decomposition tank system for preparing methane or hydrocarbons. Background technique [0002] Since the fuel cell hardly produces nitrogen and sulfur oxides that pollute the environment during the energy conversion process, it is considered as an environmentally friendly energy conversion device as one of the new environmentally friendly and efficient power generation technologies in the 21st century. [0003] Existing fuel cell electrolyzer systems generally use water vapor as the fuel gas, and the gas circuit can realize the circulation and utilization of hydrogen after gas-liquid separation, but most of these systems are not suitable for co-electrolysis conditions that include carbon dioxide. [0004] For the co-electrolysis working condition containing carbon dioxide, the existing fuel cell co-lyser system is modified on the basis of the original system. T...

Claims

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Application Information

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IPC IPC(8): C25B3/26C25B3/03C25B9/00C25B15/02
CPCC25B3/26C25B3/03C25B9/00C25B15/02C25B15/021Y02P20/10
Inventor 马征刘亚迪胡浩然
Owner 北京思伟特新能源科技有限公司